From the website: S-Jog is a program that uses the Sony Vaio laptop's Jog Wheel to do various things: * Launch applications * Adjust screen brightness * Adjust volume * Act like a mousewheel S-Jog pops up when you click the Jog Wheel then disappears after 3 seconds of idle time. The mousewheel feature is turned on when S-Jog is hidden. WWW: http://sjog.sourceforge.net/ Bruce bms@spc.org